It's a well known approximation, called the 1% rule. https://www.theguardian.com/technology/2006/jul/20/guardianweeklytechnologysection2 https://www.theguardia

It's a well known approximation, called the 1% rule. https://www.theguardian.com/technology/2006/jul/20/guardianweeklytechnologysection2 https://www.theguardian.com/technology/2006/jul/20/guardianw...